Pavleen or Betsy -- you don't need to change names with each post.
I'm sure your book shows how to find the area of a circle.
If you can't find it there, Google: area circle.
what is the area of a circle if the diameter is 8"
3 answers
Area = Pi * r^2
Pi = 3.1416
radius = Diameter/2
Plug in the values and solve.
Pi = 3.1416
radius = Diameter/2
Plug in the values and solve.
THANXS